pilot studies and types of procedures Flashcards

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1
Q

what is a pilot study?

A

a small-scale trial run of the actual investigation

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2
Q

what does a pilot study involve?

A
  • a handful of participants, rather than a total number to check the investigation runs smoothly
  • in self-report methods (eg. questionnaires or interviews), questions can be tried out in advance and remove or reword those that are ambiguous or confusing
  • in observational studies, it provides a way of checking coding systems before the real investigation is undertaken
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3
Q

what are the aims of pilot studies?

A
  • to check the procedure works
  • to check the investigation runs smoothly
  • allows the researcher to identify any potential issues and to modify the design or procedure, saving time and money in the long run
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4
Q

what are single-blind procedures?

A

when the participant is unaware of the test being conducted but the researcher is not

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5
Q

what is the aim of a single-blind procedure?

A

to remove any information that might create expectations, only revealing them at the end of the study to control the confounding effects of demand characteristics

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6
Q

what are double-blind procedures?

A

when neither the participants nor the researcher who conducts the study is aware of the aims of the investigation

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7
Q

why are double-blind procedures important in drug trials?

A
  • treatment may be administered to participants why someone who is independent of the investigation and who does not know which drugs are real and which are placebos (‘fake’ drugs)
  • if they don’t know what each participant is receiving then expectations cannot influence participant behaviour
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8
Q

what is the experimental groups and the control group (eg. in a drug trial)

A
  • experimental group is the one which receives the real drug
  • control group is the one which receives the placebo
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